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Vulnerabilities

CVE-2021-47907

Medium
CWE-79 — Weakness Type
Published: May 10, 2026  ·  Modified: May 13, 2026  ·  Source: NVD
CVSS v3
6.4
🔗 NVD Official
📄 Description (English)

Rocket LMS 1.1 contains a persistent cross-site scripting vulnerability in the support ticket module that allows authenticated users to inject malicious script code through the title parameter. Attackers can submit support tickets with embedded HTML/JavaScript payloads that execute in the browsers of other users viewing the message history, enabling session hijacking and phishing attacks.

🤖 AI Executive Summary

Rocket LMS 1.1 contains a persistent XSS vulnerability in the support ticket module allowing authenticated users to inject malicious scripts via the title parameter. The vulnerability enables session hijacking and phishing attacks against other users viewing ticket histories. With no available patch and medium CVSS score of 6.4, this poses a moderate but exploitable risk to organizations using this LMS platform.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: May 13, 2026 08:49
🇸🇦 Saudi Arabia Impact Assessment
Saudi educational institutions, government training centers, and corporate learning departments using Rocket LMS are at risk. Primary impact sectors include: Ministry of Education, ARAMCO training divisions, banking sector employee training programs, and telecommunications companies (STC, Mobily) utilizing LMS platforms. The vulnerability particularly threatens organizations with sensitive training content or those conducting compliance training. Session hijacking could lead to unauthorized access to confidential course materials, employee records, and administrative functions. Phishing attacks could compromise employee credentials across connected systems.
🏢 Affected Saudi Sectors
Education Government Banking Energy (ARAMCO) Telecommunications (STC, Mobily) Healthcare Corporate Training
⚖️ Saudi Risk Score (AI)
6.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Disable or restrict access to the support ticket module until patching is available
2. Implement Web Application Firewall (WAF) rules to block script injection attempts in ticket title parameters
3. Audit all existing support tickets for malicious payloads and remove compromised content
4. Force password reset for all users who accessed the support ticket module in the past 30 days
5. Review session logs for unauthorized access patterns

Compensating Controls:
1. Implement Content Security Policy (CSP) headers to prevent inline script execution
2. Enable HTML sanitization/encoding for all user-submitted content in ticket displays
3. Apply input validation to reject special characters in title fields
4. Implement output encoding for all ticket display functions
5. Enable security headers: X-XSS-Protection, X-Content-Type-Options

Detection Rules:
1. Monitor for script tags (<script>, <iframe>, <object>) in support ticket submissions
2. Alert on JavaScript event handlers (onclick, onload, onerror) in ticket titles
3. Track unusual session activity following ticket creation
4. Monitor for base64-encoded payloads in ticket parameters
5. Log all modifications to ticket content with user attribution
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تعطيل أو تقييد الوصول إلى وحدة تذاكر الدعم حتى توفر الرقعة
2. تطبيق قواعد جدار حماية تطبيقات الويب (WAF) لحجب محاولات حقن النصوص البرمجية في معاملات عنوان التذكرة
3. تدقيق جميع تذاكر الدعم الموجودة للبحث عن حمولات ضارة وإزالة المحتوى المخترق
4. فرض إعادة تعيين كلمة المرور لجميع المستخدمين الذين وصلوا إلى وحدة تذاكر الدعم في آخر 30 يوماً
5. مراجعة سجلات الجلسة للبحث عن أنماط الوصول غير المصرح به

الضوابط البديلة:
1. تطبيق سياسة أمان المحتوى (CSP) لمنع تنفيذ النصوص البرمجية المضمنة
2. تفعيل تنظيف/ترميز HTML لجميع المحتوى المقدم من المستخدمين في عروض التذاكر
3. تطبيق التحقق من المدخلات لرفض الأحرف الخاصة في حقول العنوان
4. تطبيق ترميز الإخراج لجميع وظائف عرض التذاكر
5. تفعيل رؤوس الأمان: X-XSS-Protection و X-Content-Type-Options

قواعد الكشف:
1. مراقبة علامات النصوص البرمجية في تقديمات تذاكر الدعم
2. التنبيه على معالجات أحداث JavaScript في عناوين التذاكر
3. تتبع نشاط الجلسة غير المعتاد بعد إنشاء التذكرة
4. مراقبة الحمولات المشفرة بـ base64 في معاملات التذكرة
5. تسجيل جميع التعديلات على محتوى التذكرة مع نسبة المستخدم
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information security policies and procedures A.6.1.1 - Access control policy A.7.1.1 - User endpoint devices security A.8.1.1 - Cryptography and data protection A.8.2.1 - Data classification and handling
🔵 SAMA CSF
ID.GV-1 - Organizational cybersecurity policy PR.AC-1 - Access control policy and procedures PR.DS-1 - Data security management DE.CM-1 - Detection and analysis RS.RP-1 - Response planning
🟡 ISO 27001:2022
A.5.1.1 - Policies for information security A.6.1.1 - Information security roles and responsibilities A.8.1.1 - User endpoint devices A.8.2.1 - Privileged access rights A.8.3.1 - Information access restriction A.14.2.1 - Secure development policy
🟣 PCI DSS v4.0.1
Requirement 6.5.7 - Cross-site scripting prevention Requirement 6.5.1 - Injection flaws prevention Requirement 12.2.1 - Security policies and procedures
📊 CVSS Score
6.4
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeC — Changed
ConfidentialityL — Low / Local
IntegrityL — Low / Local
AvailabilityN — None / Network
📋 Quick Facts
Severity Medium
CVSS Score6.4
CWECWE-79
EPSS0.03%
Exploit No
Patch ✗ No
Published 2026-05-10
Source Feed nvd
🇸🇦 Saudi Risk Score
6.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-79
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